Authentication method and electronic device using the same

Patent metadata

Field	Value
Publication number	US-10521575-B2
Application number	US-201715461057-A
Country	US
Kind code	B2
Filing date	Mar 16, 2017
Priority date	Apr 12, 2016
Publication date	Dec 31, 2019
Grant date	Dec 31, 2019

Abstract

An electronic device and an operating method thereof are provided. The electronic device includes a first processor, a second processor, a display, and a first sensor. The first processor receives an input through the first sensor while the display is in a deactivated state, and transmits the input to the second processor, when biometric data is detected in the input, and the second processor authenticates the biometric data included in the input, and activates the display if the authentication succeeds.

First claim

What is claimed is:

1. An electronic device comprising:
a first processor;
a second processor;
a display; and
a first sensor,
wherein the first processor is configured to, receive an input through a first pixel set comprised of some pixels of the first sensor while the display is in a deactivated state, activate a second pixel set when biometric data is detected in the input, the second pixel set comprising a larger number of pixels than the first pixel set, and transmit the input to the second processor,
wherein the second processor is configured to authenticate the biometric data included in the input through the second pixel set, and activate the display if the authentication succeeds,
wherein the first sensor is configured to transmit the input to the first processor, when a number of pixels of the first pixel set sensing the at least part of the input satisfies a first range, and
wherein the first range is satisfied when the input is sensed by the first sensor.

2. The electronic device of claim 1 , wherein the second processor is further configured to release a lock state, when the authentication succeeds.

3. The electronic device of claim 1 , wherein the second processor is further configured to change from a deactivated state to an activated state in response to receiving the input from the first processor.

4. The electronic device of claim 1 , wherein the first sensor is configured to transmit the input to the first processor, when a number of pixels of the first pixel set sensing the at least part of the input satisfies a second range, and
wherein the second range is satisfied when the biometric data is detected in the input.

5. The electronic device of claim 1 , further comprising:
a second sensor, the second sensor being different from the first sensor,
wherein the second sensor is configured to receive additional information, and
wherein the second processor is further configured to, after activating the display, execute a function corresponding to the additional information.

6. The electronic device of claim 5 , wherein the first sensor comprises a finger scan sensor and the second sensor comprises a touch sensor or a pressure sensor.

7. The electronic device of claim 1 , wherein the first processor comprises a processor having a lower processing capability than the second processor.

8. A method of an electronic device, the method comprising:
while a display is in a deactivated state, processing, by a first processor, an input received through a first pixel set comprised of some pixels of a first sensor;
activating a second pixel set of the first sensor when biometric data is detected in the input, the second pixel set comprising a larger number of pixels than the first pixel set;
transmitting the input, by the first processor, to a second processor;
authenticating, by the second processor, the biometric data included in the input through the second pixel set;
activating, by the second processor, the display when the authentication succeeds; and
transmitting the input to the first processor, when a number of pixels of the first pixel set sensing at least a part of the input satisfies a first range,
wherein the first range is satisfied when the input is sensed by the first sensor.

9. The method of claim 8 , further comprising releasing a lock state, by the second processor, when the authentication succeeds.

10. The method of claim 8 , further comprising changing the second processor from a deactivated state to an activated state when the input is received from the first processor.

11. The method of claim 8 , further comprising:
transmitting the input to the first processor, when a number of pixels of the first pixel set sensing at least a part of the input satisfies a second range,
wherein the second range is satisfied when the biometric data is detected in the input.

12. The method of claim 8 , further comprising:
receiving additional information from a second sensor which is different from the first sensor; and
after activating the display, executing a function corresponding to the additional information.

13. The method of claim 12 , wherein the input is received through a finger scan sensor comprising the first sensor and the additional information is received through a touch sensor or a pressure sensor comprising the second sensor.

14. A non-transitory computer-readable recording medium storing a program for executing the operations of:
while a display is in a deactivated state, processing, by a first processor, an input received through a first pixel set comprised of some pixels of a first sensor;
activating a second pixel set of the first sensor when biometric data is detected in the input, the second pixel set comprising a larger number of pixels than the first pixel set;
transmitting the input, by the first processor, to a second processor, when biometric data is detected in the input;
authenticating, by the second processor, the biometric data included in the input through the second pixel set;
activating, by the second processor, the display when the authentication succeeds; and
transmitting the input to the first processor, when a number of pixels of the first pixel set sensing at least a part of the input satisfies a first range,
wherein the first range is satisfied when the input is sensed by the first sensor.

15. The non-transitory computer-readable recording medium of claim 14 , further storing a program for executing the operation of:
releasing a lock state, by the second processor, when the authentication succeeds.

Assignees

• Samsung Electronics Co Ltd

Inventors

• Baek Seunggeol
• Min Ki Hong
• YOON Hee-Woong

Classifications

• G06F1/3296

  by lowering the supply or operating voltage · CPC title

• G06F1/3262

  Power saving in digitizer or tablet · CPC title

• G06F21/32 Primary

  using biometric data, e.g. fingerprints, iris scans or voiceprints · CPC title

• G06F1/3265

  Power saving in display device · CPC title

• G06F1/325

  Power saving in peripheral device · CPC title